Keyboard composing machine



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M. c. INDAHL KEYBOARD coMrosms MACHINE Filed Sept. 14, 1940 19 Sheets-Sheet 19 Patented June 2, 1942 UNITED STATES PATENT OFFICE 2,285,206 KEYBOARD COMPOSIN G MACHINE Mauritz c. Indahl, Rydal', Pa., assignor to Lanston Monotype Machine Company, Philadelphi'ajPa a corporation of Virginia Application september 14, 1940, SerialNo. 356,811

the plunger valves and ofthe rocker arms illus- 21 Claims.

This invention 'relatesto keyboard composing machinesin'whicha record strip is--perforated in accordance withthe keys struck or depressed by the-operator, such perforations in the record strip or controller constituting-signalsfor controlling an-associated typecastingand composing orsimilar machine, thesystem as a whole being well known to those familiar with the equipment manufactured and sold for many-years under the registered trade-mark Monotype by Lanston Monotype Machine Company.

The general construction of such a keyboard composing machine is disclosed in-United States Letters Patent #944,405 issued to J. S.'Bancroft andM; C. Indahl on'December28; 1909. It is among the objects of the present invention to improve upon the patented machine in its present commercial form by increasing its scope and flexibility, provide for a higher degree-of typographic excellence in the final product, increase the speed of composition, provide for expeditious quadding and for centering of typographic matter-{among other objects are the provision of im-' prove'd controller strip guiding and perforating mechanism, of a motor means for operating a variablenumber of punches with evenness and lighthessof touch to the operators fingers upon the keys, of an improved paper feed mechanism andfor the disposal of nibs produced-by the operation of perforating, for the proper and at times delayed action of the several parts of the mechanism by the provision of relay and other types of valves in the pneumatic system, for an improved mechanism 'for holding copy which it is desired to reproduce in the form of perforations in the controller and for accomplishing various" Fig. 4 is a detailed perspective view of the con-" troller tension plate and associated parts.

Fig. 5 is a further enlarged section of the mechanism shown in Fig. 3 illustrating particularly the pressure roller for frictionally. guiding the controller strip.

Fig. 6 is an enlarged vertical section of'one of trating the connection for operating the motor for operating the plunger valves.

Fig.- '7 is a similar'section illustrating more clearly the construction of the motor.

Fig. 8 is an end viewof the motor block.

Fig. 9 is a side view thereof. I

Fig- 10 is an end view thereof showing the-opposite end from that shown in Fig- 8.

Fig. 11 is a section through the motor on approximately line a a of Fig. 8.

Fig. 12: is a section on approximately line bb of Fig. 8.

Fig. 13 is a section on approximatelyline dd of Fig. 9. I

Fig. 14 is a similar section, buton approximately line c-C of Fig. 9.

Fig. 15 is a perspective viewof the motor valve construction, the parts being in sepaarted relation.

Figj'16 is a vertical section through one of the punch operating pistons and associated parts.

Fig. 17 is a section approximately on line" I1 |l of Fig. 19.

Fig. 18 shows a fragment of the controller paper with various signal perforations therein.

Fig. 19 is a cross section through the-paper feed and receiving'spool mechanisms.

Fig. 20 is a detailed perspective of one of the pawl's of the paper feed mechanism.

Fig. 21' isan elevation of a controlling key by which'the operation'of the paper feed mech-- anism is controlled.

Fig; 22 is a front elevation of aportion of the keyboard showing the measuring mechanism and the-justification and quadding scales.

Fig. '23 is a vertical cross sectionof the measuring mechanism on approximately lin'23"23of Fig.22.

Fig; 24 is a similar sectionon approximately 1ine24'24 of Fig. 22.

Fig; 25 is a vertical longitudinal section through the "driving-and reversing cylinder of the key-' board.

Fig; 26 is an elevation partly in-section'showingthe justification. drum pointer mechanism;

Fig. 27 is a horizontal section through approximately line 2|' 2| of Fig, 24. t

Fig. 28 is a viewpartly insection of the valve device for reversing air pressurefrom the-driving cylinder to the restoring cylinder-and of the associated air control mechansmx Fig. 29 is a vertical section through the valve shown' in Fig. 28'. 4

Fig. 30 is a cross section ofpthe" valve" through approximately line 0-6 of Fig. 29; 

